230513 has 4 divisors (see below), whose sum is σ = 234480. Its totient is φ = 226548.

The previous prime is 230507. The next prime is 230539. The reversal of 230513 is 315032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230513 - 2⁶ = 230449 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895 + ... + 2012.

It is an arithmetic number, because the mean of its divisors is an integer number (58620).

2²³⁰⁵¹³ is an apocalyptic number.

It is an amenable number.

230513 is a deficient number, since it is larger than the sum of its proper divisors (3967).

230513 is an equidigital number, since it uses as much as digits as its factorization.

230513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 230513 is about 480.1176939043. The cubic root of 230513 is about 61.3147752875.

Adding to 230513 its reverse (315032), we get a palindrome (545545).

The spelling of 230513 in words is "two hundred thirty thousand, five hundred thirteen".